<template>
  <div class="header-container">
    <div class="header-left flex-box">
      <el-icon class="icon" size="20" @click="isCollapse"><Fold /></el-icon>
      <ul class="flex-box">
        <li
         v-for="(item, index) in selectMenu" 
         :key="item.path"
         class="tab flex-box"
         :class="{ selected: route.path === item.path }"
         >
         <el-icon size="12"><component :is="item.icon" /></el-icon>
         <router-link class="text flex-box" :to="{ path: item.path }">
          {{ item.name }}
         </router-link>
         <el-icon size="12" class="close" @click="closeTab(item, index)"><Close /></el-icon>
        </li>
      </ul>
    </div>
    <div class="header-right">
      <el-dropdown @command="handleClick">
        <div class="el-dropdown-link flex-box">
          <el-avatar
            :src="userInfo.avatar"
          />
          <p class="user-name">{{ userInfo.name }}</p>
        </div>
        <template #dropdown>
          <el-dropdown-menu>
            <el-dropdown-item command="cancel">退出</el-dropdown-item>
          </el-dropdown-menu>
        </template>
      </el-dropdown>
    </div>
  </div>
</template>

<script setup>
import { useHomeStore } from '../stores/home'
import { computed } from 'vue'
import { useRoute, useRouter } from 'vue-router'
const route = useRoute()
const router = useRouter()

const homeStore = useHomeStore()
const selectMenu = computed(() => homeStore.selectMenu)

const userInfo = JSON.parse(localStorage.getItem('pz_userInfo'))

const isCollapse = () => {
  homeStore.collapseMenu()
}

const closeTab = (item, index) => {
  console.log(item)
  
  homeStore.closeMenu(item)
  // 删除非当前页的数据
  if (route.path !== item.path) {
    return
  }
  const selectMenuData = selectMenu.value
  // 删除最后一项
   console.log(index, selectMenuData.length)
  if (index === selectMenuData.length) {
    if (!selectMenuData.length) {
       router.push('/')
    } else {
      router.push({
        path: selectMenuData[index - 1].path
      })
    }
  } else { // 如果删除的是中间位置的tag
      router.push({
        path: selectMenuData[index].path
      })
  }
}

const handleClick = (command) => {
   if (command === 'cancel') {
    localStorage.removeItem('pz_token')
    localStorage.removeItem('pz_userInfo')
    localStorage.removeItem('home')
    window.location.href = window.location.origin
   }
}
</script>

<style lang="less" scoped>
.flex-box {
  display: flex;
  align-items: center;
  height: 100%;
}
.header-container{
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
  background: #fff;
  padding-right: 25px;
  .header-left {
    height: 100%;
    .icon {
      width: 45px;
      height: 100%;
    }
    .icon:hover {
      background-color: #f5f5f5;
      cursor: pointer;
    }
    .tab {
      padding: 0 10px;
      height: 100%;
      .text {
        margin: 0 5px
      }
      .close {
        visibility: hidden;
      }
      &.selected {
        a {
          color: #409eff;
        }
        i {
          color: #409eff;
        }
        background-color: #f5f5f5;
      }
    }
    .tab:hover {
      background-color: #f5f5f5;
      .close {
        visibility: inherit;
        cursor: pointer;
        color: #000;
      }
    }
  }
  .header-right {
    .user-name {
      margin-left: 10px;
    }
  }
  a {
    height: 100%;
    color: #333;
    font-size: 15px;
  }
}
</style>